Mash-machine



(No Modei.) J. B. ADT.

MASH MACHINE.

No. 327,751. Patented Oct. 6, 1885.

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JOHN B. ADT, OF BALTIMORE, MARYLAND.

MASH-MACHINE.

SPECIFICATION forming part of Letters Patent No. 327,751, dated October 6, 1885.

Application filed June 30, 1885. Serial N0.170,242. (No model.)

To @ZZ whom it may concern,.-

Beit known that I, JOHN B. ADT, of the city of Baltimore and State of Maryland, have invented certain Improvements in Mash- Machines, of which the following is a specification.

This invention relates to certain improvements in devices to discharge the grain from the mashtub, as will hereinafter fully appear.

In the drawings forming part hereof, Figure I is a sectional elevation of a mash-tub provided with my improvements. Figs. II and III are details of the invention.

A is a maslrtub of ordinary construction.

B is a vertical shaft placed centrally of the tub A, and supported in bearing-boxes a and b, situated, respectively, above and below the tub. The shaft B is rotated from the driving-shaft O through the medium of the gears D and E.

Fis the rake-shaft, supported at one end in a boX, c, secured to the shaft B, and at the other by a hanger, (Z, pendent from the end of the cross-beam G.

H I-I are rakes keyed or otherwise fastened to the rake-shaft F, which shaft is revolved from the stationary gear I through the medium of the pinion c.

The rake devices just described are of common construction, and form no part of my invention.

J is the scraper-arm, supported at the inner end by the central shaft, B, and at the outer end by a hanger, f, corresponding in construction to the one, d, from the crossbeam G.

K K are scraper-bars adapted to slide vertically through the scraper-arm J, and g g are Scrapers fastened, in an angular position with reference to a radial line, to the lower end of the scraper-bars.

The scraper-bars K K are all attached at their upper ends to a rod, L, and two or more of the bars extend above the rod L and pass through the cross-beam G, to serve as guides for the scraper mechanism during its eleva tion and depression, hereinafter described.

I do not restrict myself, however, to the scraper-bars being used as guiding devices, as guides of other descriptions could be einployed just as effectively as those shown.

M is a bifurcated lever having its fulcrum in a lug, h, projecting from the cross-beam G, and attached at its outer end by means of links i to the rod L. A top view of this leverand sectional view of some of its attachments is shown in Fig. II. The means for raising the lever M to elevate the scraper devices from the mash consist as follows: A sleeve, N, in which the central shaft, B, revolves, is adapted to slide vertically of the said shaft, and it is prevented from revolving by the guide-rods j,which pass through hangers k 7c. The hangers lt a-re secured to some stationary part of the tub near the upper end of the vertical shaft B, and this sleeve is connected to the lever M by means of the links Z Z, and others m my. The links Z are slotted at their lower ends to receive the pins u, in order that the sleeve may be guided underneath as well as above.

O O are wire ropes, which extend from the sleeve N over sheaves oto a drum, p, supported exteriorly of the mashtub. This drum, which is only shown in dotted lines, and in Fig. I, is revolved by means of a wormwheel, q, and worm o', the latter being on a shaft, s, which is provided wit-l1 a handwheel, t.

Then the mash is being stirred, the scrapers are elevated above it; but when the operation is completed, and it is desired to discharge the tub, the Scrapers are lowered to the positions shown Vin the drawings, and the grain is gradually discharged through the hole u.

I claim as my invention- 1. In combination with a mash'tub, a vertical rotative central shaft, a scraper-arm attached to and projecting from the said shaft, a series of scrapers on bars supported by the said scraper-arm adapted vto be elevated or depressed within the said arm, and means to effect their elevation and depression, substanlially as specified.

2. In combination with a mash-tub having a central rotative shaft, a series of Scrapers reds, and Winding mechanism to raise the said lever and elevate the scraping mechanism, substantially as specified.

XVitnesses:

WVM. T. HOWARD, CHAs. W. ARNOLD.

JOHN B. ADT. 

